BU34440 microcontroller equivalent, single-chip 4-bit microcontroller.
1) Low-voltage, high-speed operation (VDD=2.3 X 5.5V at 4.4MHz). 2) 4k byte ROM, 256 nibble RAM. 3) Internal 8-bit SIO (LSB first). 4) 14 programmable pull-up input / out.
Portable CD-DA devices, portable CD stereos FPin assignments
FFeatures 1) Low-voltage, high-speed operation (VDD=2.3 X .
BU34440
103
Optical disc ICs
FInput / output circuits
BU34440
104
Optical disc ICs
FElectrical characteristics (unless otherwise noted, Ta = 25_C, VDD = 5V)
BU34440
105
Optical disc ICs
FElectrical characteristics (unless otherwise noted, T.
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